Calendar of events

Aastrom Presenter: Ronnda Bartel, PhD - Chief Scientific Officer

Conference Location: 120 Broadway, second floor, New York City

Webcast: To join the conference via webcast, please register at https://www1.gotomeeting.com/register/134153232. If you are unable to join via Internet, please call (800) 882-3610 and enter 2178545 when prompted for a passcode. If you are calling from outside the U.S., please use the international phone number (412) 380-2000.

What: Investor conference call to present an update on clinical development efforts related to critical limb ischemia (CLI). The event will also feature a Q&A session with Anthony J. Comerota, MD, FACS, FACC, director of the Jobst Vascular Center in Toledo, Ohio.

When: Monday, May 10, 2010 @ 1:00 pm (ET)

Where: http://www.investorcalendar.com/IC/CEPage.asp?ID=158215

How:
* For live Internet access, simply log on to the web at the address above.
* For phone access, interested parties should call toll-free (877) 407-9210 before the start of the call to register and identify themselves as registrants of the "Aastrom Conference Call". Any registered caller on the toll-free line may ask for call operator for directions to be placed in the queue for the Question & Answer session. If calling from outside the U.S., please use the international phone number (201) 689-8049.
* To download the podcast, simply log on to the web at the address above.

If you are unable to participate during the live call, the webcast will be available for replay at http://www.investorcalendar.com/ until August 10, 2010. Through May 24, 2010, the audio replay of the call will be available by dialing toll-free (877) 660-6853, or from outside the U.S. (201) 612-7415. When prompted on the phone, the Account # is: 286, and the Conference ID# is: 350255.

Aastrom Presenter: Ronnda Bartel, PhD, Vice President, Technical Operations

Location: Room S401-D, McCormick Place Convention Center, Chicago, IL

Full Conference Dates: May 3-6, 2010

Webcast URL: No webcast available

Aastrom Presenter: Elmar R. Burchardt, MD, PhD - Vice President, Medical Affairs

Location: Bridgewaters New York, New York City

Webcast URL: No webcast available

Aastrom Presenter: Brian S. Hampson - Senior Engineering Fellow

Conference Location: The Grand Hyatt, Washington, DC

Webcast URL: No webcasting available for this event

Aastrom Presenter: Elmar R. Burchardt, MD, PhD - Vice President, Medical Affairs

Location: Co-located with the Stem Cells & Regenerative Medicine World Congress 2010 - Embassy Suites, South San Francisco, CA

Webcast URL: No webcast available

Location:
Aastrom Biosciences, Inc.
24 Frank Lloyd Wright Drive, Lobby K
Ann Arbor, MI 48105

Webcast URL: http://www.investorcalendar.com/IC/CEPage.asp?ID=151462

For live Internet access, simply log on to the web at the link above. Shareholders and other interested parties will be able to listen to the entire Annual Meeting of Shareholders. After the business portion of the meeting, Aastrom will present a corporate slideshow that will include brief presentations by: 1) Amit N. Patel, M.D., M.S., Associate Professor of Surgery at the University of Utah School of Medicine and National Principal Investigator of the Company's IMPACT-DCM clinical trial, 2) Anthony J. Comerota, M.D., F.A.C.S., F.A.C.C., Director of the Jobst Vascular Center, Adjunct Professor at the University of Michigan and National Principal Investigator of the Company's RESTORE-CLI clinical trial, and 3) a compassionate use patient treated with the Company's Vascular Repair Cells (VRCs) will share his personal experiences. Only shareholders in attendance at the meeting will have the opportunity to participate in the Question & Answer session